.{$layout-prefix}
  display flex
  flex-direction column
  flex 1
  &.{$layout-prefix}-has-sider
    flex-direction row
  .{$layout-sider-prefix}
    min-width 200px
  .{$layout-header-prefix},
  .{$layout-footer-prefix},
  .{$layout-content-prefix}
    flex 1
